https://www.youtube.com/watch?v=VcZsAErftnM&index=6&list=PL-LFOblhMGCxbVzXc97Lyu8kyyAfyJ5or

You probably need to check a grammar book. But in general mi = my and mio, mios, mia and mias mean "mine" as in "they are mine" the selection of which one you use depends on the gender of the word for the thing being referred to - mio (for a singular male item where you use el), mios for plural male where you use los, mia for la and mias for las. You also need to remember my in plural is "mis". The same pattern continues for the other items but you are still missing some. Look up Possessive Pronouns in Spanish on line and you'll get a better explanation. http://www.studyspanish.com/lessons/posspro.htm